Hand Sample Missing
Thin Section Missing

Foid-Bearing Trachyte

IUGS Definition ( QAPF Chart )

Foid-Bearing Trachyte: “A collective term for trachytes containing small amounts of feldspathoids (less than 10% of the felsic minerals).”
Typical Minerals
  • MINERAL
  • MINERAL
  • MINERAL
  • MINERAL
  • ACCESSORY MINERALS